The Black Hat Briefings go to DC next week. If you are attending, don't miss David Litchfield's talk on "Advanced Oracle Attack Techniques" at 11:15 on Feb 28. David is the top researcher on database related vulnerabilities. He is also the founder of NGSSoftware, based in the UK. His papers on Hackproofing Oracle and SQL Injection and Inference are classics. He gives lucid presentations on the latest attacks on databases.